function setCookie(name,value,timer=1){//默认将被保存 1 天 
    var Days = timer; 
     var exp  = new Date();
     exp.setTime(exp.getTime() + Days*24*60*60*1000);
     document.cookie = name + "="+ escape(value) +";expires="+ exp.toGMTString();
   }
   
   //name 需要获取cookie的key
   
   function getCookie(name){
     var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
     if(arr != null){
       return unescape(arr[2])
     }else{
       return null
     }
   }
   
   // 需要删除cookie的key
   function clearCookie(name){
     var exp = new Date();
     exp.setTime(exp.getTime() - 1);
     var cval=getCookie(name);
     if(cval!=null) document.cookie=name +"="+cval+";expires="+exp.toGMTString();
   }
   
export default {
    setCookie,
    getCookie,
    clearCookie
}
